Concrete-reinforce.



A. P. CLARK. CONCRETE REINPORGE. APPLICATION FILED APR.18, m0.

1,043,204. l atented Nbv. 5, 1912. r FSHBETBSHEET 1.

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A. P. CLARK. ,GONGRETE RBINFOEOE.

V APPLICATION FILED APB-.18, 1910. 1,43,204@

' Patented Nov. 5, 1912.

2' SHEETS-SHEET 2.

A. P. CLARK. I CONCRETE REINPORCE.

V APPLICATION IILL'D APR. 18, 1910. 1,043,204.

Patented Nov. 5, 1912.

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ARTHUR P. CLARK, OLE ST. LOUIS, MISSOURI, ASSIGNOR- TO CORRUGATED IBARCOMPANY, OF ST. LOUIS, MI$SOURL A CORPORATION OF MISSOURI.

To all whom it may concern:

Be it known that I, ARTHUR P. CLARK, a citizen of the United States, anda resident of the city of St. Louis and State of Mis- 55 souri, haveinvented a certain new and useful Improvement in Concrete-Reinforces, ofwhich the following is a specification.

This invention relates to reinforces for concrete beams and the like.

The principal objects of the invention are to produce a simple andinexpensive collapsible unit frame construction which will not interferewith the flow of the concrete, to secure compactness when the frame iscollapsed, to produce a continuous secondary reinforce which can bereadily applied to the primary reinforcing members, so as to take careof the shearing stresses and diagonal tension stresses in the beam, andto attain certain other advantages hereinafter more fully appearing.

The invention consists in the parts and in 'the arrangements andcombinations of parts hereinafter described and claimed.

In the accompanying drawings which form part of this specification andwherein like symbols refer to like parts wherever they occur, Figure 1is a side elevation (omitting some details) of a collapsible reinforcingframe embodying my invention; Fig. 2 is a plan view showing the unitframe in its collapsed condition; Fig. 3 is a. plan view showing theunit frame in its open or normal condition; Fig. 4t is a transversevertical section through a preferred arrangement of unit framecomprising bars of square section; F ig. 5 is a fragmentary sideelevation of the frame shown in Fig. 4; Fig. 6 is a fragmentary planview showing the frame in-open position; Fig. 7 is a fragmentary planview showing the frame collapsed; Fig. 8 is a transverse verticalsectionsimilar to Fig. 4, showing a frame comprising bars of round section;Fig. 9 is a fragmentary side elevation of the frame shown in Fig. 8;Fig. 10 is a detail perspective view of a wire constitutinga series ofsecondary reinforcing loops and also illustrating a fastening clip de'tached therefrom; and Fig. 113s frag- Specificetion of Letters Yatent.

Application filed April 18, 1910.

i tndinal plane.

mentary side elevation of the end portions 3 of the prunary members of aside frame,

showing a portion of the secondary reinforcing wire secured thereto. l

Patented Nov. 5, 1912. Serial No. 556,082.

trated in the drawings. In this construction, the primary reinforcingmembers of each side frame comprise a straight horizontal bar 1 at thebottom and a second bar 2 located above it, both of which are preferablycorrugated. or provided with transverse ribs 3. The middle portion ofthe upper bar 2 is parallel with the first mentioned bar 1, and, at eachend of the middle portion, said upper bar inclines upwardly and thenceextends horizontally to each end in conformity with the common practice.In some cases, the ends of the upper bars extend beyond the ends of thebottombars. The two bars thus constitute the primary reinforcing membersof a side of the unit/frame are firmly held together by suitable spacingmembers or distance pieces 4 and the side frames or members of thecomplete unit frame are connected by links 5 which are pivoted to saiddistance pieces.

The distance pieces 4 each comprise two oppositely-disposed bars orstraps having counterpart ofi'set portions 6 into which the respectivebars I, 2 are fitted. The two members of. the distance pieces 4 may besecured together in any suitable manner but preferably by cotter pins 4which are inserted through alining transverse holes in the respectivecompanion members. The members of the distance pieces are preferablysemi-cylindrical in cross section, so that the end and intermediateportions which are brought together make the end and intermediateportions of the distance pieces cylindrical.

The links 5 are perforated and the end portions of the distance piecesare projected therethrough and secured by the cotter pins. The endportions of the upper links 5 are extended some distance beyond thesides of the collapsible unit as at- 7 for the purpose of properlyspacing the several units when .a multiplicity of thesame are employedin reinforcing a beam or floor. That is, the several collapsible unitsare opened as they are assembled in position, and the adjoining unitsare brought together until the ends of the upper links 5 touch in thesame longi- To eliminate unnecessary projecting portions when the unitframes are collapsed as shown in Figs. 2 and 7, the

or beveled as at 8. By this arrangement, the

A colla isible reintorcin unit is illuso ,osite dia onal corners whichwould end portions 7 of the top link 5 are mitered iii otherwiseiprojectsome distance beyond the sides of the' bars are removed and thecolla'psed units are thereby, rendered more compact soasto take 'up lessspace in storage and transportation. j

The bottom end portions 9 of the distance pieces 4 extend some distancebeyond theottom links 5 so as to bear upon the centering or false workand thereby support the intermediate ortions of'the bars and preventthesame rom sagging.-

- The secondary reinforce comprises a continuous wire which is loopedsuccesslvely to provide a group of secondary reinforcone end of thelower bar of a side frame" ing members. This wire is fastened near ofthe primary reinforce and thence extends vertically upward and over. theouter end portion of the corresponding upper bar and thence downwardlyat an inclination to and around the lower bar;v thence up again and overthe upper barand down at an inclination to the lower bar and so on.Preferably, the several loops 1 1 of the wire reach to the same height,the outermost loops be- 'ing in cont-act at their .tops with the upperreinforcing bar, while the remaining loops extend above the portions ofthe bar inclosed bythem, respectively. The wire thus constituting agroup of secondary reinforcing members is secured by any suitablefasteners 12 to the main reinforcing bars and is preferably of. a kindthat has suitable rigidity.

A suitable fastener or clip consists of a blank of pliable metal of awidth less than the thickness of the bar and provided with elongatedlateral projections 13 at diagonally-opposite corners. v. Theseprojections 13 are of such length that when the body portions liefiatwise against one side of 'a ar and the projections are bent, theywill reach around the opposite side. A trans verse groove 14 in the bodyportion 12 receives the wire, which is thus firmly clipped 7 to the bar.These clips are .shorter than thedistance between the ribs orcorrugations with which my reinforcing bars are provided'and therefore,while they may be-p'ositioried upon the bar at any point along itslength, when once clamped upon the bar are concrete, yet the parts aresecurely held intact. It is noted that by reason of the arthe bar,

allel frames being pivot-ally linked together, the construction maybe-colla'psed compactly for shipment, in which condition it is lessbulky and less liable to injury. So, too, it e is noted that the primaryand secondary reinforcing members being secured together, the frames arestiffened and not liable to be accidentally sprung outof shape.

WVhile the foregoing descript'onrelates to a collapsible'unit frame andfr mes having doubleside members, it is obvious that the invention maybe embodied in a single reinforce or a unit frame having but a singleprimary reinforcing member or more than two thereof. So, too, it isobvious that it is not necessary that the parallel frames or members ofa collapsible unit should be counterparts of each other.

, What I claim is:

1. A concrete reinforce comprisingmembers located in parallel verticalframes, the members of said parallel frames being held in properrelation to each other by vertical spacing members, and parallel linkscollapsibly connecting said frames together, said links comprising flatplates which are pivoted to said vertical spacing members.

2. A concrete reinforcecomprising parallel tension members and, rigidparallel links collapsibly connecting said 'members together, said linkscom rising flat lates which are pivoted inwar ly from their .oppositeends to said'tension members so that their opposite end portions extendbeyond the outer sides of said tension members when the same arein openposition.

I 3. A collapsible reinforcing unit for concrete beams comprisingparallel reinforcing bars and rigid parallel links collapsiblyconnecting said tension members together, said links comprising flatplates which arepivotally connected to said tension members and havetheir end portions-extended beyond their pivotal points, so that saidend portions project beyond the outer sides of said tension members whenthe same are in open position, and thediagonally-opposite corners ofsaidlinks being mitered so that no portions of the links project beyond theouter sides'of said tensionfmembers when 5 the unit is collapsed;

4. A concrete reinforce comprising reinforcing bars located in parallelvertical frames, spacing members adapted to hold 'said bars 'in properrelation to eachother, S2L1d spaclng members comprising vertical barsarranged in pairs and having oppositely-disposed oflset portions inwhich said reinforcing bars are seated, and rigid parallel linkscomprising fiat plates which are perforated and ivotally fitted over theends of said spacing ars.

5. A colla sible concrete reinforce comprising rem orcing bars securedtogether in 1'11. ilel vertical frames, spacing members for holding saidreinforcing bars in proper relation to each other, said spacing memberscomprising pairs of bars having oppositely-disposed counterpart ofisetportions in which said reinforcing bars are seated, means for securingsaid spacing bars to-' gether, and rigid parallel links connecting saidframestogether, said links comprising flat plates which are perforatedand have the opposite end portions of said spacing bars pivota'llyfitted therein, the opposite end portions of said links being extendedbeyond their pivotal points, so that said end portions project beyondtheouter sides of 'said frames when the same are i open position.

6. A collapsible concrete reinforce comprising reinforcing bars securedtogether in parallel vertical frames, the bars of each frame being heldin proper relation to each other by spacing members comprising pairs ofbars of semi-circular cross section placed together flatwise and havingoppositely-disposed counterpart offset portions in which the reinforcingbars are seated, means for securing said spacing bars together, andrigid links pivotally connecting the side frames together, said linkscomprising flat plates which are perforated to receive the.

end portions of said spacing bars.

'7. A collapsible concrete reinforce comprising reinforcing bars whichare secured together in parallel vertical frames, said bars being heldin proper relation to each other by spacing members comprising pairs ofbars of semi-circular cross section placed together flatwisc and havingoppositely-disposed counterpart ofiset portions in which the reinforcingbars are seated, means for aid spacing bars together, and rigid parallel links pivotally connecting the side frames together, said linkscompilsing flat plates which are perforated to receive the end portionsof said spacing bars, and the opposite end portions of said platesextending l yond their pivotal points, so that portions extend beyondthe side it en th me are in open position. .i collapsible concretereinforce comng bars which are secured together in *allel verticalframes, said bars being held lzi proper relation to each other byspacing members comprising pairs of bars of semicircular cross sectionplaced together fiatse andhaving oppositely-disposed counterpart offsetportions in which the reinforcing bars are seated, means for securingsaid spacing bars together, and rigid parallel llnks ,pivotallyconnecting the side frames together, said links comprising flat plateswhich are perforated to receive the end portions of said spacing barsand the opposite end portions of said plates being extended beyond theirpivotal points, so that said end portions extend beyond the side frameswhen the same arein open position, and the diagonally-opposite corners.of' said plates being mitered so that no portions of said platesproject beyond the outer sides of said frames when the sameare'collapsed.

9. Ina concrete reinforce, a reinforcing bar having transverse ribsthereon, and loops constituting shear members, said loops passing aroundsaid bar and secured thereto by clips seated on said bar andsubstantially fitting between successive ribs.

10. A concrete reinforce comprising a horizontal lower bar, an upperbar, members for permanently positioning said bars with relation to each'other, a wire looped continuously around said bars, and clips forsecuring said wire to said bars, said clip consisting of a flexibleblank having diagonally-opposite lateral extensions bent around the barand a groove in the body portion to receive said wire.

11. A collapsible concrete reinforce comprising a plurality of framesand links pivotally connecting them together, each frame comprising ahorizontal lower bar, an upper bar whose'end portions are offsetupwardly.

members for permanentlypositioning said bars with relation to eachother, and a wire secured to and looped continuously around the outerportions ofsaid bars, said links being pivotally mounted on thepositioning members of their respective frames.

12. A concrete reinforce comprising mem' bers located in parallelframes, the members of said parallel frames being held in properrelation to each other by spacing members, and parallel linkscollapsibly connecting said frames together, said links comprising flatplates which are pivoted to said spacing members.

St. Louis, Mo., April 15th, 1910.

. ARTHUR P. CLARK.

Vitnesses:

Anrnnn E. LINDAN, W. H. Bonn.

denies of this patent may be obtained for five cents each, by addressingthe Commissioner of li'atents,

Washington, D. G."

